If subtitle is ahead of sound, input a positive number, which will delay the subtitles. Under Subtitles/Video, use Subtitle track synchronization to adjust subtitles.Head to Subtitles > Subtitle track to check subtitles are turned on.Or if you need to be ultra-specific, follow these steps to sync subtitles in VLC on Mac: How to sync subtitles in VLC on Macĭuring playback you can press H or J to adjust subtitle delay, which will adjust it by 50 milliseconds with every key press. Here's how you can sync subtitles on VLC on Android, Android TV, iPhone, iPad, macOS, and Windows. But if you're not so lucky and are wondering how to manually sync them on VLC, we have you covered. Ideally, you'd able to download subtitles that are perfectly synced, with no adjustments necessary on your end. VLC is pretty great with handling any video files you throw at it, but there are times that you need to step in, as with subtitles. But beyond all that, what makes VLC great is that it's lightweight and easy to use. VLC is also available on the Apple Watch. Moreover, VLC has apps for a variety of platforms and devices, including Windows, Mac, iOS, Apple TV, Android, Android TV, Xbox One, and Chrome OS among others. It's open source and available free of cost. With over 3 billion downloads since launch, VLC is quite likely the most popular media player.